Nowadays, making a 3D object can be done in just a few clicks. Several areas with the high use of it include prototyping production, architecture, education, medical, jewelry, and others. The result of 3D printing could help people understanding the object that is imitated such as a 3D heart for medical students. The use of this technology increases as it becomes affordable. If you are interested in getting one or want to know more about it, these are some types of 3D printing technology.
Viewed by the process of printing, types of 3D printers fall into several categories that are: Material Extrusion, Material Jetting, Binder Jetting, Vat Polymerization, and Powder Bed Fusion. The first category, Material Extrusion, has an almost similar process with the 3D pen in that thermoplastic filament is produced by the heating process in the nozzle part. The 3D printer in this category belongs to the Fused Deposition Modeling (FDM) type. This type of printer is good for electrical housings, fixtures, jigs, and others. Among other types, it is the cheapest one, but the result is quite fragile.
Material Jetting category enables wax droplets to form an object by a layer at a time. This category mostly uses photopolymer resin or wax droplets. There are two types of 3D printers in this http://18.104.22.168 category that are Material Jetting (MJ) and Drop On Demand (DOD). The difference between those two is that DOD uses a pair of inkjets making a cross-sectional area, while MJ makes in a line-wise style. This category is mostly used for molds, medical models, and other prototypes that have a space in them.
With the help of a powder bed, metal or sand powder is spread then bound selectively a liquid bonding agent in Binder Jetting printers. After the object has been firmly built, it must be cleaned from the unbounded metal powder or sand. Just like its materials, this printer is commonly applied for sand casting, sandstone, and metal parts. It also enables printing large objects with complicated design/geometry. People also can add color.
Just like its name, vat polymerization printers use involves a vat in them. The material, photopolymer resin, is carefully cured using light energy. This category has three types that are Stereolithography, Masked Stereolithography, and Direct Light Processing.
Their differences only lie in the light energy sources. Stereolithography (SLA) and Maksed Stereolithography (MSLA) use a point laser, while Direct Light Processing (DLP) uses a digital light projector with a voxel approach. Viewed from the duration of the making process, DLP and MSLA are faster than SLA because they trace the layer one at a time not in a cross-sectional area.
Lastly, the Powder Bed Fusion process is almost the same as Binder Jetting. Instead, Power Bed Fusion applies thermoplastic powder, not the metal one. Selective Laser Sintering (SLS) belongs to this type of process. As seen from the making process, SLS also has a similar mechanism with SLA in which the laser heats the powder and make the cross-section area solid.